Need help with my Blood Mage - 0 hp chaotic tank

UPDATE:

It turned out curses are not DoTs but rather debuffs in PoE2. 0 hp spell cast were claimed impossible, too. So I deleted the relevant parts in my post


Fellow Exiles,

I am very new to the game, and still learning. I only have a few hours a week to play, so I cannot dive as deep into the game as some of you, but I like researching in what build to invest my precious hours, while a have some time to spare at the office.

I am now theorycrafting a Blood Mage build, but google/youtube/reddit didn't provide the answers that I needed. So here I beg you for some help:

Another idea that I have is a 0hp blood mage with a massive energy shield. The question here is, are there any item skills that convert all damage taken to chaos? Thinking about how the Chaos Inoculation passive can be implemented in a build (perhaps a melee/tank), since spells cannot be casted with 0 hp.

Your two cents here would be greatly appreciated!

I picked up CI (Chaos Innoculation) on the passive tree yesterday specifically to test, and as a blood mage it will not let you cast spells since they have a life cost as well. So there's no way, at least not that I can see, to be a Blood Mage without having life.

Thank you for the info! I guess CI is meant to be used with Blood Magic or some melee/thorns/some passively generated dmg.